Everlive.Sdk.$.data not working in Cloud Function

[Arpita]

I am new to Telerik platform backend services. I am trying to access cloud data in cloud function using Everlive.Sdk. I followed the Api Using Javascript Sdk in telerik documentation to get data. Everything is working fine without any error but instead of getting data I get blank response (like this: {}) when I Execute the cloud function. I added console.log statements in my code but I noticed that callback function in Everlive.Sdk.$.data(null, function(error, data)){} was not called. My code is as followed:

Everlive.CloudFunction.onRequest(function(request, response, done){
    console.log("onrequest called..");

     Everlive.Sdk.$.data('questions').get(null, // filter
        function(error, data) {
            console.log("in callback function...");
            if (error) {
                 console.log("in error...");
                // When using cloud functions you need to set the result like so:
                response.body = error;
                response.statusCode = 500;
            } else {
                 console.log("in success..");
                // When using cloud functions you need to set the result like so:
                response.body = JSON.stringify(data.result);
            }
            done();
     });
    done();
});

Please help me with this, I am kind of stucked here. Let me know what I am missing.

Thanks & Regards

Arpita

[Yosif]

Hello Arpita ,

The reason for this is that you are invoking done() right after you invoke the .get() function for the data type. As Everlive.Sdk.$.data('questions').get() is an asynchronous function you have to call the done() in its callback(s), because now you are immediately ending the CloudFunction without waiting for the .get() to finish.

If you remove the done() as shown below everything else will work great. 

Everlive.CloudFunction.onRequest(function(request, response, done){
    console.log("onrequest called..");

     Everlive.Sdk.$.data('questions').get(null, // filter
        function(error, data) {
            console.log("in callback function...");
            if (error) {
                 console.log("in error...");
                // When using cloud functions you need to set the result like so:
                response.body = error;
                response.statusCode = 500;
            } else {
                 console.log("in success..");
                // When using cloud functions you need to set the result like so:
                response.body = JSON.stringify(data.result);
            }
            done();
     });
    // done(); -This done() is causing the problem, as it returns immediately, but the request hasn't completed yet.
});

I hope this helps.

Regards,
Pavel
Telerik

 

 

[Arpita]

Hello Pavel,

Thanks alot for the solution. It worked for me.

Thanks & Regards,

Arpita